This graph is a vertical shift of the parent cube root function . The equation of the graphed function is .
Answer & Analysis
Analysis
Question Analysis
This question involves identifying the vertical shift of a cube root function from its graph. The main focus is on using the central point (where the "S" shape balances) of the graphed function to find the missing vertical shift value.
Key Concept Explanation
Central Point of Parent Cube Root Function: The parent function has a central point at (where the "S" shape changes direction) and passes through this point.
Vertical Shift for Cube Roots: When a cube root function is shifted vertically by k units, its equation becomes . The central point of this shifted function is —the x-coordinate stays 0 (no horizontal shift), and the y-coordinate equals k.
Step-by-step Solution
1. Identify the central point of the graphed function: The graph is a cube root function (no starting point, "S" shape) and passes through .
For cube roots with no horizontal shift, this is the central point .
2. Recall the form of a vertically shifted cube root function:
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